Black tank says full but it’s empty
Fairly new RV. Have rigorously followed instructions regarding emptying only when full, keeping water in the bottom, using a black tank tablet. On a recent trip, I was surprised to see the black ta...
Forum Discussion
pryoclastic wrote:rvshrinker wrote:Not to worry at this point in time as it is a super common problem. Sensor(s) could have a something clogged up against it making it report a false positive.
Please let me know how to trouble shoot this.
I have tried several type of black tank cleaners and this is my favorite:
https://www.amazon.com/Kronen-KHT003-Handle-Holding-Treatment/dp/B00BFTZC3A
Pour some that down into the black tank and let it slosh around. When you pull into your next destination, dump black and see if that fixes the false positive.
If it does, use the holding treatment regularly and especially make sure some is in the black tank as you travel to slosh it.
Newbie question here, on my 5th wheel the instructions say to never run the black tank flush with the tank dump valve closed. Am I missing something?
